Mercury (Hg) records in sediment archives inform past patterns of Hg deposition and the anthropogenic contribution to global cycling. Natural climate variations complicate interpretation accumulation rates (HgARs), warranting additional research. Here, we investigated stable isotopes a ca. 8k year-long core Lake Titicaca combined isotopic data with organic biomarkers biogeochemical measurements...

El presente texto analiza la gestión pública ambiental del Gobierno Regional de Puno como preocupación y desarrollo metas para renovar el medio ambiente en departamento Puno, contaminación Lago Titicaca, cuenca río Coata, que afecta a población lograr sustentable. sobre políticas ambientales está enmarcado al paradigma pluralista, ya resultado se consigue por acción diversos grupos políticos no...

ALAN L. KOLATA Cities, and the larger political formations within which they are embedded, are dynamic congeries of political, economic, and social institutions that are shaped and reshaped by historical circumstance. This dynamism and mutability in the face of exogenou-s forces might suggest the impossibility of a coherent, general theory about the forms and forces of urban transformation of t...

The presence of steroid hormones in lake waters causes contamination aquatic ecosystems, which may cause endocrine alterations the organisms that inhabit them. Moreover, many these are purified and distributed to populations located around lake. Therefore, effects could be repeated humans consuming water. This study reports hormone residues inner bay Lake Titicaca drinking water city Puno (Peru...